New workstation :New Threadripper 3960X or 3970X or Ryzen 3950X

[lukx]

Okay finally time to upgrade my workstation. I was waiting and waiting for 7nm AMD and here it is. Now the problem which one to go with.
For me it's not only rendering but lot of modeling and multitasking (rendering, zbrush sculpting at the same time etc.) Also cloth and particle simulation. SO I need one powerful workstation that can do it all
Is it worth getting the 32 core beast 3970x or a bit overkill and go with 24 cores as it's 100mhz (3.8Ghz) base clock faster which is important in 3dsmax as it's one core app.
I'm not sure about Ryzen 3950x as I read that it will require water cooling and because if Threadripper size I assume air is still good and quieter option.
Whats your take an all this?

[Paul Oblomov]

I vote for 24cores. Already bought 256gigs

[lukx]

I vote for 24cores.

any reason why 24 and not 32?

[Paul Oblomov]

Cheaper. Faster one threaded

[psanitra]

Cheaper. Faster one threaded

It`s not going to be faster one threaded. Both can go up to 4.5Ghz. In single threaded app, cpu will be looking for best core to run the thread on. And it`s not going to be at 3,7 VS 3,8, but much higher, possibly near to 4.5ghz....

[Paul Oblomov]

Then, cheaper

[super gnu]

i am very interested to see how the 8 channel chips compare.. nothing is certain at the moment, but there is definitely a chipset for threadripper coming with 8 memory channels (wrx80) and presumably chips specifically for that chipset. i assume (and i could be wrong) that the 48 and 64 core threadrippers (due in jan next year or so) will be 8 channel, since 4 channels is already rather feeble for a 32 core chip.. makes sense that the newer higher core models will have to address this.

zen2 seems to work very well given the limited bandwidth (they have tons of cache) however there are limits, and more is better.. so maybe the 8 channels will perform noticeably better than simply having more cores. of course, clock speeds might be much lower...

anyone from Chaos care to give an opinion on zen2 vray performance? is it limited by memory bandwith significantly on the higher core models? or does it generally play well with the large caches available?

[PIXELBOX_SRO]

Ill wait for 3990 coming in January

[seandunderdale]

+1 for waiting for 64 cores.

[Shiyan lin]

I saw a review on 3950x in youtube channel,the benchmark result shows that 3950x slower than core i9-9980xe in Vray and Corona

It's a little bit confusing to me since 3950X beats 9980xe in Blender Cycles render..

Can anybody give some info about the benchmark result? Does that means intel chip is better than zen2 in Vray or Corona?

[sirio]

Does that means intel chip is better than zen2 in Vray or Corona?

Yes, at least in Vray.

[PIXELBOX_SRO]

I would not invest into 16 core nowadays

[Shiyan lin]

I would not invest into 16 core nowadays

I am interested in your choice,are there any better options for you to build a powerful workstation?

It will be really appreciate if you can share your experience.

[PIXELBOX_SRO]

32 threads just dont cut it for me. I am not surprised intel beats amd on that front plus they have a lot better memory handling. Iam reliant on cpu because our projects use a lot of memory. Therefore i go for highest thread count machines with good price per core ratio. TRs are great, but the lower end ones are easily replaced by intels. If you have good enough budget, go for 32 core at least

[psanitra]

Review are out, performance of 3970X is just nuts